vector[N] c = rep_vector(0,N)

Also this "data { matrix[U, O] X[1]; . . . . " is allowed;

vector[N] c = rep_vector(0,N)

Also this "data { matrix[U, O] X[1]; . . . . " is allowed;

```
vector[N] c = rep_vector(0,N)
```

Will return a vector, of length N, of 0

2 Likes

I have an array dim=c(1,90,5) in R ,how do I pass this at STAN???

This is the same as:

```
matrix[90,5] par[1];
```

For example:

```
arr = structure(rep(0,1*90*5),dim=c(1,90,5))
modelcode ="
data {
real y_mean;
matrix[90,5] arr[1];
}
parameters{
real y;
}
model {
y ~ normal(y_mean,1);
}
"
mod = stan(model_code = modelcode,data=list(y_mean=0,arr=arr))
```

2 Likes

and if I want to multiply all this arr in STAN with something I do it like arr * 6 or arr[1]*6?